sbase/basename.c

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/* See LICENSE file for copyright and license details. */
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#include <libgen.h>
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "util.h"
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static void usage(void);
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int
main(int argc, char *argv[])
{
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char *s;
size_t n;
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ARGBEGIN {
default:
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usage();
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} ARGEND;
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if(argc < 1)
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usage();
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s = basename(argv[0]);
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if(argc == 2 && argv[1]) {
n = strlen(s) - strlen(argv[1]);
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if(!strcmp(&s[n], argv[1]))
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s[n] = '\0';
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}
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puts(s);
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return EXIT_SUCCESS;
}
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void
usage(void)
{
eprintf("usage: %s name [suffix]\n", argv0);
}